Export Github Labels

export-github-labels.js

/*
Purpose: Export the configuration settings for GitHub Labels.
(c) James Perrin, MIT License, https://www.countrydawgg.com, | @jamesperrin

Modified to pull additional label info from the Gutenberg repo by @ndiego

Exporting Instructions:
1. Open a web browser.
2. Navigate to the desired GitHub repository.
3. Navigate to Issues tab.
4. Navigate to Labels link.
5. Open the web browser's Developer Tools
6. Navigate to the Console
7. Copy and Paste below code into the Console.
8. Save github-labels.json to a desired computer folder location.
*/

/**
 * @description Exports GitHub repository Issues labels to a JSON file
 */
(function () {
	function hex(x) {
		return ('0' + parseInt(x).toString(16)).slice(-2);
	}

	function rgba2hex(rgba) {
		rgba = rgba.match(/^rgba?\((\d+),\s*(\d+),\s*(\d+)(,\s*\d+\.*\d+)?\)$/);
		return hex(rgba[1]) + hex(rgba[2]) + hex(rgba[3]);
	}

	// Process to export labels into a JSON object
	function getLabels() {
		const jsLabels = document.querySelectorAll('.js-label-link');

		if (!jsLabels || jsLabels.length < 1) {
			console.error('Unable to find GitHub labels');
			return;
		}

		const labels = [];

		[].slice.call(jsLabels).map((jsLabel) => {
    			labels.push({
				name: `${jsLabel.dataset.name.trim()}`,
				description: jsLabel.parentElement.nextElementSibling.innerText.trim(),
                		count: jsLabel.parentElement.nextElementSibling.nextElementSibling.innerText.trim(),
				color: "#" + rgba2hex(window.getComputedStyle(jsLabel).getPropertyValue('background-color')),
                		link: 'https://www.github.com' + jsLabel.getAttribute('href')
			});
		});

		// Outputs labels to the Console
		console.log(JSON.stringify(labels, null, 2));

		return labels;
	}

	// Function save JSON object to a file
	function saveJSON(data, filename) {
		if (!data || data.length < 1) {
			console.error('No data');

			return;
		}

		const blob = new Blob([JSON.stringify(data, undefined, 4)], { type: 'text/json' });

		const anchorElement = document.createElement('a');

		const mouseEventOptions = {
			bubbles: true,
			cancelable: false,
			screenX: 0,
			screenY: 0,
			clientX: 0,
			clientY: 0,
			ctrlKey: false,
			altKey: false,
			shiftKey: false,
			metaKey: false,
			button: 0,
			buttons: 0,
			relatedTarget: null,
			region: null,
		};

		const mouseEvent = new MouseEvent('click', mouseEventOptions);

		anchorElement.download = filename;
		anchorElement.href = window.URL.createObjectURL(blob);
		anchorElement.dataset.downloadurl = ['text/json', anchorElement.download, anchorElement.href].join(':');
		anchorElement.dispatchEvent(mouseEvent);
	}

	// Saves labels to JSON file.
	saveJSON(getLabels(), 'github-labels.json');
})();